diff --git a/fastapi_app.py b/fastapi_app.py
index 03f8984..33e3ed9 100644
--- a/fastapi_app.py
+++ b/fastapi_app.py
@@ -827,19 +827,46 @@ async def fetch_bot_config(bot_id: str) -> Dict[str, Any]:
 
 
 def process_messages(messages: List[Message], language: Optional[str] = None) -> List[Dict[str, str]]:
-    """处理消息列表，包括[ANSWER]分割和语言指令添加"""
+    """处理消息列表，包括[TOOL_CALL]|[TOOL_RESPONSE]|[ANSWER]分割和语言指令添加"""
     processed_messages = []
 
     # 处理每条消息
     for msg in messages:
         if msg.role == "assistant":
-            # 对assistant消息进行[ANSWER]分割处理，只保留最后一段
-            content_parts = msg.content.split("[ANSWER]")
-            if content_parts:
-                # 取最后一段非空文本
-                last_part = content_parts[-1].strip()
-                processed_messages.append({"role": msg.role, "content": last_part})
+            # 使用正则表达式按照 [TOOL_CALL]|[TOOL_RESPONSE]|[ANSWER] 进行切割
+            parts = re.split(r'\[(TOOL_CALL|TOOL_RESPONSE|ANSWER)\]', msg.content)
+
+            # 重新组装内容，过滤掉过长的 [TOOL_RESPONSE] 后的内容
+            filtered_content = ""
+            current_tag = None
+
+            for i in range(0, len(parts)):
+                if i % 2 == 0:  # 文本内容
+                    text = parts[i].strip()
+                    if not text:
+                        continue
+
+                    if current_tag == "TOOL_RESPONSE":
+                        # 统计 [TOOL_RESPONSE] 后面的文字长度，超过1000字符就丢弃
+                        if len(text) <= 1000:
+                            filtered_content += f"[TOOL_RESPONSE]\n{text}\n"
+                        # 如果超过1000字符，直接丢弃这块内容
+                    elif current_tag == "TOOL_CALL":
+                        filtered_content += f"[TOOL_CALL]\n{text}\n"
+                    elif current_tag == "ANSWER":
+                        filtered_content += f"[ANSWER]\n{text}\n"
+                    else:
+                        # 第一个标签之前的内容
+                        filtered_content += text + "\n"
+                else:  # 标签
+                    current_tag = parts[i]
+
+            # 取最终处理后的内容，去除首尾空白
+            final_content = filtered_content.strip()
+            if final_content:
+                processed_messages.append({"role": msg.role, "content": final_content})
             else:
+                # 如果处理后为空，使用原内容
                 processed_messages.append({"role": msg.role, "content": msg.content})
         else:
             processed_messages.append({"role": msg.role, "content": msg.content})